BMW X3 2004 — technical service bulletin
Bulletin 840904 · NHTSA communication 10006781 · issued Mar 1, 2004
Technical service bulletin
communication type
Equipment
component
2004
model years
1
vehicle entries
Official summary
Telematics control unit (tcu) missing from vehicle, but not included in service action. Includes bmw 3 series 2004. *tt
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.